<i>System 75:</i>The Oryx/Pecos Operating System

Sager, Gary R.; Melber, Joseph; Fong, K. T.

doi:10.1002/j.1538-7305.1985.tb00431.x

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…Range checks can be applied both to computer-specific variables, such as queue and stack lengths, and to application-specific variables, such as engine operating temperature. 2 We anticipate that range checkers will be the most common form of BIT.…”

Section: Range Checkersmentioning

confidence: 99%

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Feasibility of Software Built-In Test for SDI (Strategic Defense Initiative) Applications

Healey¹

1987

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Section: Range Checkersmentioning

confidence: 99%

“…The concept Involves measuring software performance and comparing it to (1) performance limits derived from design values for expected performance or (2) performance limits adjusted during test and pre-crisis operation.…”

mentioning

confidence: 99%

Feasibility of Software Built-In Test for SDI (Strategic Defense Initiative) Applications

Healey¹

1987

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System 75:Switch Services Software

Densmore

Jakubek

Miracle

et al. 1985

At&T Technical Journal

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The switch services software of System 75 provides the basis for an extensible office communication system, supporting a wide variety of voice and data‐switching services. This paper presents the software architecture of the System 75 switch services. The concepts of user, group, and process‐per‐call form its foundation. We introduce the architecture by stepping through a simple station‐to‐station phone call, and proceed to the derivation of a call model based on the topology of a call. This call model is realized as a layered set of cooperating processes that execute under the Oryx/Pecos Operating System on the System 75 switch processor. The software layers and processes are discussed and a call walk‐through is used to illustrate the process interactions.

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System 75:Software Development Tools

Pedersen

Ritacco

Santillo

1985

At&T Technical Journal

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Efficient development of high‐quality software requires a comprehensive set of software development tools. Tools used within the System 75 office communication system project support a hierarchical model of development, and range from compilers, assemblers, and debuggers to high‐level tools that drive the software manufacturing process and aid in monitoring software quality and performance. Tools are applied in each of the many steps required to develop, test, integrate, and maintain product releases. Staff roles and procedures for use of these tools encompass a set of development and release‐management cycles that begin with the individual developer and extend into the field support organization. The roles and procedures are flexible and easily customized to support various individual and group assignments. Specific tools to be described include the Object Generation System, the Local Administrative Tool Kit; the Oryx/Pecos Test, Inquiry, and Control System; tools for testing processes in isolation; manufacturing and distribution tools; performance‐measurement tools; source‐control and change‐management tools; and tools for program update and system analysis at field sites.

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System 75:The Oryx/Pecos Operating System

Cited by 6 publications

References 14 publications

Feasibility of Software Built-In Test for SDI (Strategic Defense Initiative) Applications

Feasibility of Software Built-In Test for SDI (Strategic Defense Initiative) Applications

System 75:Switch Services Software

System 75:Software Development Tools

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